Hi Jai,
Welcome to Saafe!You haven't said if you're looking to be a straight male escort or if you're a gay male escort.
If you're straight I'd suggest you read this thread, and don't hand over any money to any agencies...women don't tend to pay for sex (sorry!):
http://www.saafe.info/main/index.php?topic=506.msg82273#msg82273
If you're gay, then there's pay - and if you search the forum (box in top right corner) and use the main site there's loadsa tips on advertising, safety etc etc. The articles on the main site are really well done, and come from people who have years of experience who have taken the time to share their knowledge, so have a read (make tea, there's frickin loads of stuff).
Best of luck xx